Coffee maker



FIG. 1 is a perspective view of a coffee maker, the design of which comprises my invention;

FIG. 2 is a front side elevation view thereof;

FIG. 3 is a back side elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is bottom view thereof;

FIG. 8 is an exploded in-use perspective view thereof; and,

FIG. 9 is an in-use perspective view thereof.

The broken lines in the drawings are included for the purpose of illustration and form no part of the claimed design. 

The ornamental design for a coffee maker, as shown and described. 